Experimental port to Firebase hosting

modules/__tests__/utils/withAuthHeader.js

@@ -1,13 +1,11 @@
-const withToken = require('./withToken');
+import withToken from './withToken';
 
 function encodeBase64(token) {
   return Buffer.from(token).toString('base64');
 }
 
-function withAuthHeader(scopes, done) {
+export default function withAuthHeader(scopes, done) {
   withToken(scopes, token => {
     done(encodeBase64(token));
   });
 }
-
-module.exports = withAuthHeader;